When working on molecular modeling in SAMSON, efficiently managing visual customization is essential to streamline workflows and enhance clarity. This is where render preset attributes in SAMSON's Node Specification Language (NSL) come into play. If you've ever wanted to better organize and control how your molecular designs are displayed, this guide will introduce you to key render preset attributes and how to use them effectively.
What Are Render Preset Attributes?
Render preset attributes are part of the renderPreset attribute space, which is specifically designed for render preset nodes in SAMSON. These attributes enable users to control node display properties by specifying names, selection states, and flags. This level of control can help modelers who often navigate complex molecular systems to ensure the correct visual prioritization and focus.
Let's break down some of the essential attributes:
1. name Attribute
The name attribute (short name: n) is inherited from the general node.name attribute. It allows you to assign a specific name to your render preset nodes, which can be helpful for categorization or searches. The names are strings written in quotes.
For example:
rp.n "A"matches a node with the exact name “A”.rp.n "L*"matches nodes whose names start with “L”.
2. selected Attribute
This attribute enables filtering based on whether a node is selected or not. A key characteristic of this attribute is that it is inherited from node.selected, but it does not include the short form s. Values for this attribute can either be true or false, giving precise control over the display configuration.
Example expressions:
rp.selectedto select render preset nodes that are currently active or highlighted.not rp.selectedto find unselected render preset nodes.
3. selectionFlag Attribute
The selectionFlag attribute (short name: sf) helps define specific flags for nodes. This attribute is also inherited from node.selectionFlag. It's a binary value (true or false) that allows for additional customization of render preset behaviors.
Examples include:
rp.sf falseto find nodes whose selection flag isfalse.rp.sfto identify nodes with the flag set totrue.
Why Use Render Preset Attributes?
For anyone modeling large or intricate molecular systems, having the ability to quickly find and modify render presets can save significant time and improve productivity. For instance, if you're working on a protein-ligand system and want to instantly identify all render presets related to a ligand, the name attribute makes this task seamless. Similarly, controlling the visibility of nodes using selected or customizing behavior with selectionFlag adds flexibility to the design process.
To dive deeper into these attributes and examples, visit the full documentation page on Render Preset Attributes.
SAMSON and all SAMSON Extensions are free for non-commercial use. You can download SAMSON at https://www.samson-connect.net.